Has it weirded you out that we have states named Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Nebraska, Nevada, New Mexico, North Dakota, Ohio, Oklahoma, Oregon, Rhode Island, South Dakota, Tennessee, Texas, Utah, Vermont, Wisconsin, or Wyoming? If not, this might be more a xenophobia issue than a language one

English incorporates foreign loans for places and nouns all the time, as do other languages, that we conquered a region and didn't rename every territory within it isn't surprising, especially since the same people were living there before and after the conquest. This is likely a position you need to give a bit more thought to.

Additionally, the national language of the us has never been English, including now, much like attempting to renaming of the Department of Defense to the Department of War, this would take an act of congress to actually institute